SAP ABAP Program FH5AMTOP (Header for SAPFH5AM) is using

• Table/Structure Field (4)
• Message Class (1)
• Program (6)
• Table (16)

#	Object Type	Object Name	Object Description	Note
1	Table	HRBUFFER	Infotype Buffer
2	Table	HRDBTAB	Update Table
3	Table	HRP1000	Infotype 1000 DB Table
4	Table	HRTBUFFER	Buffer for Table Part of Table Infotype
5	Table	P1001	Infotype 1001: Relationships
6	Table	PLOG	Planning and Organization File
7	Table	PPENQ	Lock Key
8	Table	PPHDR	Common Key for PD Infotypes
9	Table	PPKEY	PPKEY: PD Key Structure
10	Table	PPPAR	PD Parameter String
11	Table	T778L	Languages Supported in HR-PD
12	Table	T778S	Planning Status
13	Table	T77EO	External Object Types
14	Table	T77FC	PD Function Codes
15	Table	T77VA	Relationship Characteristics
16	Table	WPLOG	PD Infotype Work Area